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Published In: Flora 14: 459. 1831. (Jul 1831) (Flora) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: C.150 species, in Asia, tropical Africa, N. America to Mexico. Represented in Pakistan by 6 species.


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Paradioecious or monoecious herbs with usually tuberous roots. Stem sheathing. Leaves digitately compound, sometimes pedate. Spathe finally deciduous, the spadix included or excluded. Male flowers with 2-5 stamens; anthers bilocular. Female flower with a unilocular ovary and 2 or more basal ovules; style short or absent. Berry few-seeded, red. Seeds globose to ovoid.

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1 Leaves not perforated (2)
+ Leaves perforated Arisaema pertusum
2 (1) Leaflets 3, suborbicular, rhombic or rhombic ovate. Spathe brown purple (with white stripes) (3)
+ Leaflets 5-14, elliptic-ovate to lanceolate or linear-lanceolate. Spathe green or greenish yellow (4)
3 (2) Spathe limb narrower, ovate to oblong, 3-4 cm broad. Peduncle sometimes longer than the foliage Arisaema propinquum
+ Spathe limb 4-8.5 cm broad, obovate. Peduncle present below the foliage Arisaema utile
4 (2) Plants monoecious or paradioecious. Leaves pedate, leaflets 7-14. Spathe tube shorter than the limb (5)
+ Plants paradioecious. Leaves not pedate; leaflets 5-7. Spathe tube longer than the limb Arisaema jacquemontii
5 (4) Leaflets elliptic-ovate to lanceolate. Spathe tube ovoid, 1-2 cm long; spadix appendage 1.5 cm long, erect, included Arisaema flavum
+ Leaflets linear-lanceolate. Spathe tube cylindric, 2.3-4.5 cm long; spadix appendage 8-11 cm long, curved upwards and beyond the spathe Arisaema tortuosum
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